MOSCOW, July 29. /TASS/. More than 20 people have been injured as a train and a Kamaz truck collided in southwestern Russia’s Volgograd Region, a law enforcement officer told TASS.

"So far, over 20 people have been reported injured as a truck collided with a train," the officer said.

Eight cars of the passenger train derailed in the collision, Russian Railways said on its Telegram channel. Relief teams and repair trains have been dispatched to the scene. Service on that sector of the railway has been halted, the state-owned railway operator added.

More than 800 people were on board the train riding from Kazan in the Russian Volga republic of Tatarstan to Adler on the Russian Black Sea coast, officials said.